Sharp Kabushiki Kaisha Corporation

Eiji Maruo

Miho Ohba

Shuji Kaya

Seio Kaino

Junichi Kakimoto

A reversible keyboard is attached, with the front or reverse side up, into a keyboard attachment recess equipped with a rubber key unit. This reversible keyboard comprises keytop membersfor pressing down the rubber key unitas well as a front key cabinetand a reverse key cabinetincluding holesrespectively. The front keytop membersand the reverse keytop membersare respectively inserted in the holesand project from the front key cabinetand the reverse key cabinetIn this state, the keytop membersare housed in the front key cabinetand the reverse key cabinetand allowed to move upwardly and downwardly.

Reversible keyboard and information processor

An electronic desk calculator includes: an input device for inputting a plurality of numeral units and an operator; a counter for storing a value representing the number of numeral units; a controller for performing a calculation based on at least one numeral unit and the operator, and for receiving the at least one numeral unit input through the input device to increase a value stored in the counter by one; and a display for displaying the value stored in the counter.

Growing community of inventors

Nara, Japan

Eiji Maruo